Drug interactions
Diphenoxylate + Methamphetamine
Severity: Minor
Diphenoxylate and Methamphetamine: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Diphenoxylate is an opioid antidiarrheal that can cause CNS depression, especially in overdose, whereas methamphetamine is a stimulant. Stimulation may mask sedation. A significant interaction at therapeutic doses is unlikely.
What this interaction means in plain words
Diphenoxylate and Methamphetamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Diphenoxylate belongs to Gastrointestinal Tract; Methamphetamine belongs to Central Nervous System.
Why it happens
Opposing CNS effects of opioid activity and amphetamine-induced arousal.
What to do
Monitor sedation and keep to recommended diphenoxylate doses. No additional action is generally needed.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Methamphetamine
- Isocarboxazid + Methamphetamine Contraindicated
- Linezolid + Methamphetamine Contraindicated
- Methamphetamine + Phenelzine Contraindicated
- Methamphetamine + Procarbazine Contraindicated
- Methamphetamine + Rasagiline Contraindicated
- Methamphetamine + Safinamide Contraindicated
Other interactions of Diphenoxylate
Frequently asked questions
Can I take Diphenoxylate with Methamphetamine?
MediHelp rates the interaction as minor. Diphenoxylate and Methamphetamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Diphenoxylate is an opioid antidiarrheal that can cause CNS depression, especially in overdose, whereas methamphetamine is a stimulant. Stimulation may mask sedation. A significant interaction at therapeutic doses is unlikely.
How serious is the interaction between Diphenoxylate and Methamphetamine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor sedation and keep to recommended diphenoxylate doses. No additional action is generally needed.
What other medicines interact with Methamphetamine?
MediHelp also lists interactions of Methamphetamine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Methamphetamine page.
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